Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41561-019-0300-3 |
A consensus estimate for the ice thickness distribution of all glaciers on Earth | |
Farinotti, Daniel1,2; Huss, Matthias1,3; Fuerst, Johannes J.4; Landmann, Johannes1,2; Machguth, Horst3,5; Maussion, Fabien6; Pandit, Ankur7,8 | |
2019-03-01 | |
发表期刊 | NATURE GEOSCIENCE
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ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2019 |
卷号 | 12期号:3页码:168-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland; Germany; Austria; India |
英文摘要 | Knowledge of the ice thickness distribution of the world's glaciers is a fundamental prerequisite for a range of studies. Projections of future glacier change, estimates of the available freshwater resources or assessments of potential sea-level rise all need glacier ice thickness to be accurately constrained. Previous estimates of global glacier volumes are mostly based on scaling relations between glacier area and volume, and only one study provides global-scale information on the ice thickness distribution of individual glaciers. Here we use an ensemble of up to five models to provide a consensus estimate for the ice thickness distribution of all the about 215,000 glaciers outside the Greenland and Antarctic ice sheets. The models use principles of ice flow dynamics to invert for ice thickness from surface characteristics. We find a total volume of 158 +/- 41 x 10(3) km(3), which is equivalent to 0.32 +/- 0.08 m of sea-level change when the fraction of ice located below present-day sea level (roughly 15%) is subtracted. Our results indicate that High Mountain Asia hosts about 27% less glacier ice than previously suggested, and imply that the timing by which the region is expected to lose half of its present-day glacier area has to be moved forward by about one decade. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000460103000009 |
WOS关键词 | SEA-LEVEL ; MASS-BALANCE ; TOPOGRAPHY ; VOLUME ; SURFACE ; RATES ; PROJECTIONS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/34836 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Swiss Fed Inst Technol, Lab Hydraul Hydrol & Glaciol VAW, Zurich, Switzerland; 2.Swiss Fed Inst Forest Snow & Landscape Res WSL, Birmensdorf, Switzerland; 3.Univ Fribourg, Dept Geosci, Fribourg, Switzerland; 4.Friedrich Alexander Univ Erlangen Nuremberg FAU, Inst Geog, Erlangen, Germany; 5.Univ Zurich, Dept Geog, Zurich, Switzerland; 6.Univ Innsbruck, Inst Atmospher & Cryospher Sci, Innsbruck, Austria; 7.Indian Inst Technol, Interdisciplinary Programme Climate Studies, Mumbai, Maharashtra, India; 8.Indian Inst Technol, Dept Civil Engn, Hydroremote Sensing Applicat H RSA Grp, Mumbai, Maharashtra, India |
推荐引用方式 GB/T 7714 | Farinotti, Daniel,Huss, Matthias,Fuerst, Johannes J.,et al. A consensus estimate for the ice thickness distribution of all glaciers on Earth[J]. NATURE GEOSCIENCE,2019,12(3):168-+. |
APA | Farinotti, Daniel.,Huss, Matthias.,Fuerst, Johannes J..,Landmann, Johannes.,Machguth, Horst.,...&Pandit, Ankur.(2019).A consensus estimate for the ice thickness distribution of all glaciers on Earth.NATURE GEOSCIENCE,12(3),168-+. |
MLA | Farinotti, Daniel,et al."A consensus estimate for the ice thickness distribution of all glaciers on Earth".NATURE GEOSCIENCE 12.3(2019):168-+. |
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